Fountain pen



SeptA 1, 1925.

B. HAGBERG FOUNTAIN' PEN Filed March 7. 1925 atto: M1

Patented Sept. 1, 1925.

UNITED STATES lBERNARD HAGBERG, or MUsxEeoN, MICHIGAN.

roUNTAIN PEN.

Application med March 7, 1925. Serial No. 13,841.

To all whom t may concern:

Be it known that I, BERNAR) HAGBERG, a citizen of the United States, residing at Muskegon, in the county of Muskegon and State of Michigan, have invented certain new and useful Improvements in Fountain Pens, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to fountain pens, and particularly to the so-called self-filling fountain pens wherein a rubber sack or pouch is contained within the barrel of the pen which contains the ink.

The general object of the present inventionl is to provide means whereby the,,sack

' or pouch may be more readily filled than at present, and more specifically to provide an ink bill, as it may be termed, inserted within the plug forming the cap of the rubber sack and extending into the ink feeder so that by detaching` the ink feeder and' the grip porg tion of the pen from the inner barrel this ink bill will be exposed and the barrel withv the ink bill may be then inserted in a bottle of ink and the usual lever manipulated to first compress the sackto discharge air therefrom and then relieve the compression to permit the sack to expand and ink to fiow upward into the sack.

Other objects have to do with other improvements in the details of construction of the pen as will appear more fully hereinafter. y

My invention is illustrated in the accompanying drawing, wherein Figure 1 is an elevation of a fountain pen constructed in accordance with my invention showing the cap in section;

Figure 2 is a longitudinal sectional View of a portion of the ink barrel and ink-containing bag showing my improved spout or bi l;

Figure 3 is a longitudinal sectional view of the ink-containing barrel and bag and of the ink pot showing the manner in which the device is used when the pen is being filled;

Figure 4 is a. perspective view of the sack compressing lever and its ring support;

Referring to this drawing, 10 designatesy the barrel of the pen and 11 the cap. This cap has its end interior] y screw-threaded, as at 12. Preferably the other end of the cap is closed by a plug 13,'having a flange 14 disposed within the cap engaging a tang 15 therein.4 This lever is pivotall which extends out through a slot in the cap and then extends longitudinally of the cap to form a pen clip. The barrel 10 is exteriorly screw-threaded, as at 16, to engage the interior screw-threads of the cap.

Disposed within the barrel is the rubber sack 17 which normally contains the ink.

`This sack almost completely fills the barrel and the mouth of this sack extends over a nipple 18 forming part of an ink bill 19. This ink bill at its middle is enlarged and the outer face thereof is knurled and beyond this outer face is formed with a reduced screw-threaded portion 20 and with a longitudinally extending, smooth-faced, tubular spout or bill 21. The bore of. this bill 21 extends entirely through the body formed of the parts 19 and 18 and thus communicates with the interior of the sack 17. The exteriorly screw-threaded portion 20 is adapted to have screw-threaded engagement with a grip 22 and the bore of the bill aligns with the bore ofthis grip. `This grip at one end is formed with an interior screw-threaded socket which engages the portion 2O of the bill and at the bottom of this socket is disposed a rubber washer 23 against which the shoulder at 'the extremity of the screwthreaded portion bears.

Inserted in the op osite end of the grip is the ink feeder 24 o the usual type formed with a longitudinally extending bore and a. recess in the upper face, andl fitting over the concave face of this feeder is the usual pen' cause the filling of the sack with ink comprises, as shown in Figure 3, a longitudinally extending spring 27, the rear end of which is bent around and ts within the butt end of the barrellO, as shown in Figure 3. This spring 27 is slightly curved longitudinally and normally lies against the side wall of the sack. lA lever 28 is mounted upon the barrel, the lever passing through a slot in the barrel and normally lying in arecess 4 mounted upon a resilient ring 29l ex an ing into a groove in the wall of the arrel, and the inner end of this lever bears against the spring 27 so that when the lever is turned into a position at right angles to the lon'; tudinal axis of the pen, the spring will grip portion 22 and the ink bill or spout 21 to come into closer contact should any dirt collect on these surfaces and also to serve as a collecting chamber to hold slight amounts of ink which might collect in this joint should the ink bill be scraped or dragged along one side of the'threaded hole in putting together after filling or if the screw-threads .20 happen to become filled with ink. This annular channel 30 serves to prevent the squeezing out of the ink at the joint.

The purpose and operation of the ink bill is seen clearly from Figure 3. When it is desired to fill the pen, the bit or grip 22 is unscrewed, carrying with it the ink feeder 24 and the pen point 25, and leaving the protruding bill, the bill is then inserted in the ink pot, and it will be obvious that the bill may extend way down to the very bottom of the pot and thus the pen may be filled even when there is but very little ink in the pot. The lever 28 is then shifted to force the air within the sack out of the sack and then allowed to come back .to its normal position again, whereupon, as before remarked, the ink is drawn inward into the sack, filling the same, the bit with the ink feeder and pen point are then again replaced upon the body of the pen, and the pen is ready for use.

It will -be particularly noted that inasmuch as the grip or bit 22 is removed from the body of the pen when it is being filled with ink and only replaced after the pen has been filled, that the pen grip 22 and the barrel are left clear and free from ink on the outside. Furthermore, there is no danger of injuring the pen point by striking it against the bottom of an ink well as there is whenl an ordinary fountain pen is filled.

l. A fountain pen of the character described including a barrel, a collapsible inkholding sack within the barrel, a bill attached to the sack and having a longitudinally extending spout, a pen-holding portion detachably engaged with said bill and removable therefrom when it is desired to fill the sack, and means carried by the barrel whereby the sack may be collapsed or expanded.

2. In a fountain pen, an ink holder, an ink feeder, a pen point support detachably engaged with the ink holder, the ink holder' f being provided with a longitudinally projecting, tubular spout extending into the ink feeder whereby when it isdesired to fill the pen the ink feeder and pen point may be removed from'engagement with the ink holder and the spout insertedin a source of supply.

3. In a fountain pen, a |barrel, an ink-containing sack disposed within the barrel, a tubular head for the sack having a forwardly projecting, screw-threaded nipple and a longitudinallyI extending spout, a bit detachably enga-ged with the nipple, an ink feeder disposed within the bit and having a tubular channel into which the spout projects, the ink feeder being adapted to support a pen point, and means on the barrel whereby the sack may be compressed or permitted to eX- pand.

4. A fountain pen comprising a barrel, a sack disposed. within the barrel, a tubular head closing the forward end of the Sack and having a forwardly directed spout, the base of the spout being screw-threaded, a bit l having screw-threaded engagement with the base of the spout and through which the spout extends, an ink feeder disposed within the bit and having a channel into which the spout extends, the ink feeder being formed to support a pen point between it and the bit, and means on the barrel whereby the sack may be compressed or permitted to expand.

5. A fountain pen comprising a barrel, a sack disposed Within Ithe barrel, a tubular head closing the forward end of the sack and having a forwardly directed spout, the base of the spout being screw-threaded, a bit having screw-threaded; engagement with the base ofthe spout and through which the spout extends, an ink feeder disposed within the bit and having' a channel into which the spout extends, the inkl feeder being formed to sup-port a pen point between it and the bit, a longitudinally extending spring disposed within the barrel and resting upon the sack, and a. lever mounted -upon the barrel and adapted to force said spring inward against the sack when turned in one position or to permit the spring to spring outward when it is turned into its normal position.

6. In a fountain pen, a barrel, an ink-containing sack disposed within the barrel, a tubular head for the sack having a forwardly projecting. screw-threaded nipple and a longitudinally extending spout, a bit det-achably engaged with the nipple, an ink feeder disposed within the bit and having a tubular channel into which the spout projects, and means on the barrel whereby the sack may be compressed or permitted to expand, the tubular head for the sack and the bit being formed on their contacting faces to provide an annular ink-containin chamber immediately surrounding the hipp e.

"7. In a fountain pen, a barrel, an ink-containing sack disposed Within the barrel, u the screw-threaded portion of the spout and tubular` head closing the end of the sack und being countersunk to thereby form an an-Y having a forwardly directed spout, the base nula!- ink-collecting channel. 10 of the spout being screw-threaded, and a hit In testimony whereof I hereuntoaiix my 5 having screw-threaded engagement ivith the signature.

base of the spout and through Which the v spout extends, the bit at its base engaging u BERNARD HAGBERG. 

